1298540800

素因数分解:

$2^8\times 5^2\times {\mathrm{137}}^1\times {\mathrm{1481}}^1$

素因数の和:1644

約数の個数: 108

約数和(自身を含む): 3239737956

約数和(自身を除く): 1941197156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 137, 160, 200, 256, 274, 320, 400, 548, 640, 685, 800, 1096, 1280, 1370, 1481, 1600, 2192, 2740, 2962, 3200, 3425, 4384, 5480, 5924, 6400, 6850, 7405, 8768, 10960, 11848, 13700, 14810, 17536, 21920, 23696, 27400, 29620, 35072, 37025, 43840, 47392, 54800, 59240, 74050, 87680, 94784, 109600, 118480, 148100, 175360, 189568, 202897, 219200, 236960, 296200, 379136, 405794, 438400, 473920, 592400, 811588, 876800, 947840, 1014485, 1184800, 1623176, 1895680, 2028970, 2369600, 3246352, 4057940, 4739200, 5072425, 6492704, 8115880, 9478400, 10144850, 12985408, 16231760, 20289700, 25970816, 32463520, 40579400, 51941632, 64927040, 81158800, 129854080, 162317600, 259708160, 324635200, 649270400, 1298540800]

約数ペア:

[(1, 1298540800), (2, 649270400), (4, 324635200), (5, 259708160), (8, 162317600), (10, 129854080), (16, 81158800), (20, 64927040), (25, 51941632), (32, 40579400), (40, 32463520), (50, 25970816), (64, 20289700), (80, 16231760), (100, 12985408), (128, 10144850), (137, 9478400), (160, 8115880), (200, 6492704), (256, 5072425), (274, 4739200), (320, 4057940), (400, 3246352), (548, 2369600), (640, 2028970), (685, 1895680), (800, 1623176), (1096, 1184800), (1280, 1014485), (1370, 947840), (1481, 876800), (1600, 811588), (2192, 592400), (2740, 473920), (2962, 438400), (3200, 405794), (3425, 379136), (4384, 296200), (5480, 236960), (5924, 219200), (6400, 202897), (6850, 189568), (7405, 175360), (8768, 148100), (10960, 118480), (11848, 109600), (13700, 94784), (14810, 87680), (17536, 74050), (21920, 59240), (23696, 54800), (27400, 47392), (29620, 43840), (35072, 37025)]